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Cloning, sequence analysis, and distribution of rat metallocarboxypeptidase Z
1Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
DNA and Cell Biology
|May 7, 1998
Summary
Researchers identified the rat carboxypeptidase Z (CPZ) gene, finding it highly conserved with human CPZ. Rat CPZ mRNA is abundant in the placenta and expressed in specific brain cells, suggesting diverse cellular functions.
Area of Science:
- Biochemistry
- Molecular Biology
- Genetics
Background:
- Human carboxypeptidase Z (CPZ), a novel metallocarboxypeptidase, was previously cloned.
- CPZ contains a unique N-terminal frizzled-like domain.
Purpose of the Study:
- To identify and characterize the rat homolog of carboxypeptidase Z (CPZ).
- To investigate the sequence conservation and tissue distribution of rat CPZ.
Main Methods:
- cDNA cloning and sequence analysis.
- Northern blot analysis for mRNA expression.
- In situ hybridization for cellular localization.
Main Results:
- Rat CPZ shares high sequence identity with human CPZ, particularly in the frizzled and carboxypeptidase domains.
- Rat CPZ mRNA is highly abundant in the placenta and detected in brain, lung, thymus, and kidney.
- In situ hybridization revealed specific expression patterns, such as in brain leptomeningeal cells.
Conclusions:
- Rat and human CPZ are highly conserved, indicating functional importance.
- The distinct tissue and cellular distribution suggests diverse roles for CPZ in different cell types.
- CPZ may play a role in various physiological processes across different tissues.